diff --git a/backend/utils/cloud_storage/client/sftp.go b/backend/utils/cloud_storage/client/sftp.go
index d41cec2a8..243c4f6d5 100644
--- a/backend/utils/cloud_storage/client/sftp.go
+++ b/backend/utils/cloud_storage/client/sftp.go
@@ -108,7 +108,7 @@ func (s sftpClient) Download(src, target string) (bool, error) {
 	}
 	defer dstFile.Close()
 
-	if _, err = srcFile.WriteTo(dstFile); err != nil {
+	if _, err = io.Copy(srcFile, dstFile); err != nil {
 		return false, err
 	}
 	return true, err
diff --git a/backend/utils/cloud_storage/client/webdav.go b/backend/utils/cloud_storage/client/webdav.go
index 966fdc870..66d6ccfec 100644
--- a/backend/utils/cloud_storage/client/webdav.go
+++ b/backend/utils/cloud_storage/client/webdav.go
@@ -1,9 +1,12 @@
 package client
 
 import (
+	"crypto/tls"
 	"fmt"
 	"io"
+	"net/http"
 	"os"
+	"strings"
 
 	"github.com/studio-b12/gowebdav"
 )
@@ -25,6 +28,14 @@ func NewWebDAVClient(vars map[string]interface{}) (*webDAVClient, error) {
 		url = address
 	}
 	client := gowebdav.NewClient(url, username, password)
+	tlsConfig := &tls.Config{}
+	if strings.HasPrefix(address, "https") {
+		tlsConfig.InsecureSkipVerify = true
+	}
+	var transport http.RoundTripper = &http.Transport{
+		TLSClientConfig: tlsConfig,
+	}
+	client.SetTransport(transport)
 	if err := client.Connect(); err != nil {
 		return nil, err
 	}
@@ -33,22 +44,13 @@ func NewWebDAVClient(vars map[string]interface{}) (*webDAVClient, error) {
 
 func (s webDAVClient) Upload(src, target string) (bool, error) {
 	targetFilePath := s.Bucket + "/" + target
-	fileInfo, err := os.Stat(src)
+	srcFile, err := os.Open(src)
 	if err != nil {
 		return false, err
 	}
-	// 50M
-	if fileInfo.Size() > 52428800 {
-		bytes, _ := os.ReadFile(src)
-		if err := s.client.Write(targetFilePath, bytes, 0644); err != nil {
-			return false, err
-		}
-		return true, nil
-	}
-	file, _ := os.Open(src)
-	defer file.Close()
+	defer srcFile.Close()
 
-	if err := s.client.WriteStream(targetFilePath, file, 0644); err != nil {
+	if err := s.client.WriteStream(targetFilePath, srcFile, 0644); err != nil {
 		return false, err
 	}
 	return true, nil
@@ -76,16 +78,8 @@ func (s webDAVClient) Download(src, target string) (bool, error) {
 		return false, err
 	}
 	defer file.Close()
-	// 50M
-	if info.Size() > 52428800 {
-		reader, _ := s.client.ReadStream(srcPath)
-		if _, err := io.Copy(file, reader); err != nil {
-			return false, err
-		}
-	}
-
-	bytes, _ := s.client.Read(srcPath)
-	if err := os.WriteFile(target, bytes, 0644); err != nil {
+	reader, _ := s.client.ReadStream(srcPath)
+	if _, err := io.Copy(file, reader); err != nil {
 		return false, err
 	}
 	return true, err
diff --git a/frontend/src/views/cronjob/backup/index.vue b/frontend/src/views/cronjob/backup/index.vue
index 3886d3a3e..d4ad274b6 100644
--- a/frontend/src/views/cronjob/backup/index.vue
+++ b/frontend/src/views/cronjob/backup/index.vue
@@ -107,9 +107,15 @@ const onDownload = async (row: Backup.RecordInfo) => {
         fileDir: row.fileDir,
         fileName: row.fileName,
     };
-    await downloadBackupRecord(params).then(async (res) => {
-        downloadFile(res.data);
-    });
+    loading.value = true;
+    await downloadBackupRecord(params)
+        .then(async (res) => {
+            loading.value = false;
+            downloadFile(res.data);
+        })
+        .catch(() => {
+            loading.value = false;
+        });
 };
 
 const buttons = [